Enable loading gssapi library for Chromad.

net/http/http_auth_preferences.h

Index: net/http/http_auth_preferences.h
diff --git a/net/http/http_auth_preferences.h b/net/http/http_auth_preferences.h
index 4f3a68befb60e987ef613ac70e26617425b868ff..a77b193d159f68e77dd432c277eb2434dd035d64 100644
--- a/net/http/http_auth_preferences.h
+++ b/net/http/http_auth_preferences.h
@@ -27,6 +27,10 @@ class NET_EXPORT HttpAuthPreferences {
                       ,
                       const std::string& gssapi_library_name
 #endif
+#if defined(OS_CHROMEOS)
+                      ,
+                      bool allow_gssapi_library_load
+#endif
                       );
   virtual ~HttpAuthPreferences();
 
@@ -39,6 +43,9 @@ class NET_EXPORT HttpAuthPreferences {
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
   virtual std::string GssapiLibraryName() const;
 #endif
+#if defined(OS_CHROMEOS)
+  virtual bool AllowGssapiLibraryLoad() const;
+#endif
   virtual bool CanUseDefaultCredentials(const GURL& auth_origin) const;
   virtual bool CanDelegate(const GURL& auth_origin) const;
 
@@ -77,6 +84,9 @@ class NET_EXPORT HttpAuthPreferences {
   // sorts of problems for, for example, active Negotiate transactions.
   const std::string gssapi_library_name_;
 #endif
+#if defined(OS_CHROMEOS)
+  bool allow_gssapi_library_load_;
+#endif
   std::unique_ptr<URLSecurityManager> security_manager_;
   DISALLOW_COPY_AND_ASSIGN(HttpAuthPreferences);
 };